make <expr> always overload if expr is overloaded
[perl.git] / hints / netbsd.sh
1 # hints/netbsd.sh
2 #
3 # Please check with packages@netbsd.org before making modifications
4 # to this file.
5
6 case "$archname" in
7 '')
8     archname=`uname -m`-${osname}
9     ;;
10 esac
11
12 # NetBSD keeps dynamic loading dl*() functions in /usr/lib/crt0.o,
13 # so Configure doesn't find them (unless you abandon the nm scan).
14 # Also, NetBSD 0.9a was the first release to introduce shared
15 # libraries.
16 #
17 case "$osvers" in
18 0.9|0.8*)
19         usedl="$undef"
20         ;;
21 *)
22         case `uname -m` in
23         pmax)
24                 # NetBSD 1.3 and 1.3.1 on pmax shipped an `old' ld.so,
25                 # which will not work.
26                 case "$osvers" in
27                 1.3|1.3.1)
28                         d_dlopen=$undef
29                         ;;
30                 esac
31                 ;;
32         esac
33         if test -f /usr/libexec/ld.elf_so; then
34                 # ELF
35                 d_dlopen=$define
36                 d_dlerror=$define
37                 cccdlflags="-DPIC -fPIC $cccdlflags"
38                 lddlflags="--whole-archive -shared $lddlflags"
39                 rpathflag="-Wl,-rpath,"
40                 case "$osvers" in
41                 1.[0-5]*)
42                         #
43                         # Include the whole libgcc.a into the perl executable
44                         # so that certain symbols needed by loadable modules
45                         # built as C++ objects (__eh_alloc, __pure_virtual,
46                         # etc.) will always be defined.
47                         #
48                         ccdlflags="-Wl,-whole-archive -lgcc \
49                                 -Wl,-no-whole-archive -Wl,-E $ccdlflags"
50                         ;;
51                 *)
52                         ccdlflags="-Wl,-E $ccdlflags"
53                         ;;
54                 esac
55         elif test -f /usr/libexec/ld.so; then
56                 # a.out
57                 d_dlopen=$define
58                 d_dlerror=$define
59                 cccdlflags="-DPIC -fPIC $cccdlflags"
60                 lddlflags="-Bshareable $lddlflags"
61                 rpathflag="-R"
62         else
63                 d_dlopen=$undef
64                 rpathflag=
65         fi
66         ;;
67 esac
68
69 # netbsd had these but they don't really work as advertised, in the
70 # versions listed below.  if they are defined, then there isn't a
71 # way to make perl call setuid() or setgid().  if they aren't, then
72 # ($<, $>) = ($u, $u); will work (same for $(/$)).  this is because
73 # you can not change the real userid of a process under 4.4BSD.
74 # netbsd fixed this in 1.3.2.
75 case "$osvers" in
76 0.9*|1.[012]*|1.3|1.3.1)
77         d_setregid="$undef"
78         d_setreuid="$undef"
79         ;;
80 esac
81 case "$osvers" in
82 0.9*|1.*|2.*|3.*|4.*|5.*)
83         d_getprotoent_r="$undef"
84         d_getprotobyname_r="$undef"
85         d_getprotobynumber_r="$undef"
86         d_setprotoent_r="$undef"
87         d_endprotoent_r="$undef"
88         d_getservent_r="$undef"
89         d_getservbyname_r="$undef"
90         d_getservbyport_r="$undef"
91         d_setservent_r="$undef"
92         d_endservent_r="$undef"
93         d_getprotoent_r_proto="0"
94         d_getprotobyname_r_proto="0"
95         d_getprotobynumber_r_proto="0"
96         d_setprotoent_r_proto="0"
97         d_endprotoent_r_proto="0"
98         d_getservent_r_proto="0"
99         d_getservbyname_r_proto="0"
100         d_getservbyport_r_proto="0"
101         d_setservent_r_proto="0"
102         d_endservent_r_proto="0"
103         ;;
104 esac
105
106 # These are obsolete in any netbsd.
107 d_setrgid="$undef"
108 d_setruid="$undef"
109
110 # there's no problem with vfork.
111 usevfork=true
112
113 # This is there but in machine/ieeefp_h.
114 ieeefp_h="define"
115
116 # This script UU/usethreads.cbu will get 'called-back' by Configure
117 # after it has prompted the user for whether to use threads.
118 cat > UU/usethreads.cbu <<'EOCBU'
119 case "$usethreads" in
120 $define|true|[yY]*)
121         lpthread=
122         for xxx in pthread; do
123                 for yyy in $loclibpth $plibpth $glibpth dummy; do
124                         zzz=$yyy/lib$xxx.a
125                         if test -f "$zzz"; then
126                                 lpthread=$xxx
127                                 break;
128                         fi
129                         zzz=$yyy/lib$xxx.so
130                         if test -f "$zzz"; then
131                                 lpthread=$xxx
132                                 break;
133                         fi
134                         zzz=`ls $yyy/lib$xxx.so.* 2>/dev/null`
135                         if test "X$zzz" != X; then
136                                 lpthread=$xxx
137                                 break;
138                         fi
139                 done
140                 if test "X$lpthread" != X; then
141                         break;
142                 fi
143         done
144         if test "X$lpthread" != X; then
145                 # Add -lpthread.
146                 libswanted="$libswanted $lpthread"
147                 # There is no libc_r as of NetBSD 1.5.2, so no c -> c_r.
148                 # This will be revisited when NetBSD gains a native pthreads
149                 # implementation.
150         else
151                 echo "$0: No POSIX threads library (-lpthread) found.  " \
152                      "You may want to install GNU pth.  Aborting." >&4
153                 exit 1
154         fi
155         unset lpthread
156
157         # several reentrant functions are embeded in libc, but haven't
158         # been added to the header files yet.  Let's hold off on using
159         # them until they are a valid part of the API
160         case "$osvers" in
161         [012].*|3.[0-1])
162                 d_getprotobyname_r=$undef
163                 d_getprotobynumber_r=$undef
164                 d_getprotoent_r=$undef
165                 d_getservbyname_r=$undef
166                 d_getservbyport_r=$undef
167                 d_getservent_r=$undef
168                 d_setprotoent_r=$undef
169                 d_setservent_r=$undef
170                 d_endprotoent_r=$undef
171                 d_endservent_r=$undef ;;
172         esac
173         ;;
174
175 esac
176 EOCBU
177
178 # Set sensible defaults for NetBSD: look for local software in
179 # /usr/pkg (NetBSD Packages Collection) and in /usr/local.
180 #
181 loclibpth="/usr/pkg/lib /usr/local/lib"
182 locincpth="/usr/pkg/include /usr/local/include"
183 case "$rpathflag" in
184 '')
185         ldflags=
186         ;;
187 *)
188         ldflags=
189         for yyy in $loclibpth; do
190                 ldflags="$ldflags $rpathflag$yyy"
191         done
192         ;;
193 esac
194
195 case `uname -m` in
196 alpha)
197     echo 'int main() {}' > try.c
198     gcc=`${cc:-cc} -v -c try.c 2>&1|grep 'gcc version egcs-2'`
199     case "$gcc" in
200     '' | "gcc version egcs-2.95."[3-9]*) ;; # 2.95.3 or better okay
201     *)  cat >&4 <<EOF
202 ***
203 *** Your gcc ($gcc) is known to be
204 *** too buggy on netbsd/alpha to compile Perl with optimization.
205 *** It is suggested you install the lang/gcc package which should
206 *** have at least gcc 2.95.3 which should work okay: use for example
207 *** Configure -Dcc=/usr/pkg/gcc-2.95.3/bin/cc.  You could also
208 *** Configure -Doptimize=-O0 to compile Perl without any optimization
209 *** but that is not recommended.
210 ***
211 EOF
212         exit 1
213         ;;
214     esac
215     rm -f try.*
216     ;;
217 esac
218
219 # NetBSD/sparc 1.5.3/1.6.1 dumps core in the semid_ds test of Configure.
220 case `uname -m` in
221 sparc) d_semctl_semid_ds=undef ;;
222 esac
223
224 # malloc wrap works
225 case "$usemallocwrap" in
226 '') usemallocwrap='define' ;;
227 esac
228
229 # don't use perl malloc by default
230 case "$usemymalloc" in
231 '') usemymalloc=n ;;
232 esac